[my pokemon's happiness?]

thank you both that helped a lot 

[my pokemon's happiness?]

so i have a riolu and i want to evolve it into lucario but when i look at riolu's happiness it shows a question mark and not a number whenever i click the question mark it brings me to the forms and shows a page i cant access is there another way to check the happiness of your pokemon i need 3 happiness to evolve riolu but i have no way on checking how much i need still.